Envelope or bag making machinery



Nov. 2, 1937. A. NOVICK ENVELOPE 0R BAG MAKING MACHINERY Filed Dec. 12. 1933 3 Sheets-Sheet 1 INVENTOR- Arm/2am Nov/ck.

AITORNEYS Nov. 2, 1937. A. NOVICK ENVELOPE OR BAG MAKING MACHINERY Filed Dec. 12, 1933 s Sheets-Sheet 2 INVENTOR Abra/7am Nov/ck.

BY I ATTORNEYS} Nov. 2, 1937. A. NOVICK ENVELOPE OR BAG MAKING MACHINERY Filed Dec. 12, 1933 3 Sheets-Sheet 3 INVENTOR Abraham Nov/ck. BY 2, 7

A TTORNEYS Patented Nov. 2, 1937 PATENT OFFICE ENVELOPE R BAG MAKING MACHINERY Abraham Novick, Flushing, N. Y., assignor to F. L. Smithe Machine 00., 1110., New York, N. Y., a corporation of New York Application December 12, 1933, Serial No. 701.943

'7 Claims.

This invention relates to envelope or bag making machinery and has for an object to provide improved means for applying gum for the end fold, for ironing down the end fold, and for conducting the bagsaway from' the operating instrumentalities and for delivering them in definite and orderly relation.

Other objects and advantages will hereinafter appear.

In the drawings forming part of this specification, I

Figure 1 is a fragmentary, sectional, side elevation illustrating mechanism embodying features of the invention:

ure 2 is a fragmentary, detail, diagrammatic view illustrating the delivery of a blank from one conveyor to another;

Figure 3 is a fragmentary plan view illustrating the mechanism of Figures 1 and 2;

Figure 4 is a fragmentary sectional elevation illustrating the forming of a tuck in the bag;

gure 5 is a view similar to Figure 4 illustrating the same parts a little farther advanced in their cycle;

Figure 6 is a-fragmentary sectional elevation illustrating the ironing of the end fold and the first stage of the delivery of a blank to a longitudinal conveyor; and

Figure '7 is a view generally similar to Figure 6 showing. the blank after the longitudinal conveyor has taken control of the same.

The machine comprises a mechanism (not shown) for forming a continuous web of paper;

"Cellophane or other suitable bag material into 35 a tube, and for severing the tube. into bag blanks of suitable lengths. The blanks are delivered by feed roll couples 2 and 3, 4 to a tucking, pasting and folding mechanism indicated generally by reference numeral 5. The mechanism 5 comprises two feeding cylinders 6 and I which run at the same speed and which cooperate to feed the blanks. The cylinder 6 has fixed upon it a bar 8 which pivotally and yieldingly supports a tucking bar 9. The cylinder 6 also includes two adjustable segments In which may be fixed in various adjusted relations to the main portion of the cylinder by means of bolts II and slots l2. A bar I3 is mounted in a radial slot l4 formed in the segment I0 and is movable toward and from 50 the center of the cylinder. A-g'vmmer bar I5 is mounted upon the bar l3. An actuating arm I6 is secured to a shaft l6 mounted upon the segments Ill, said shaft having two forked arms l6", one at each end, and each arm embracing a pin foroscillating the bar I! toward and from the axis of the cylinder 6. The actuating arm is carries a cam follower l8 which travels upon a stationary cam it the follower i8 being urged towards said cam by a spring i9. oscillatory movement is imparted to the bar i3 for the purpose of projecting the gumming bar i5 beyond the p phery of the cylinder t at an app opriate P nt in the cycle to receive gum from a gum roller 26, which roller stands clear of the surface of the cylinder so as not to apply the gum thereto, and for retracting the g'umming bar to a position substantially flush with the feeding surface of the cylinder 6 for engagement with the blank upon the periphery of the cylinder 7.

The cylinders 6 and 7 are so related that the tucking bar 9 acts to tuck a leadingend portion of theblank between fixed and movable jaws 2| and 22. The jaw 2| is a fixed part of the cylinder 7 while the jaw 22 is carried upon a rock shaft 23, which shaft also carries a cam follower 2d. The shaft 23 is mounted in a block 25 which is removably held by bolts 26 in a radial slot formed in the cylinder 7. The cam follower 2-7 travels upon a stationary cam 27 and is effective when it rides onto a high part of the cam to move the jaw 22 away from the jaw 2| 'to an open position. A spring 28 tends to restore the jaw 22 to closed position and is effective to do so as soon as the leading end of the bag blank has been tucked between the jaws. The sequence of operations is well illustrated in Figures 4 and 5.

When the blank has been tucked and gripped between the jaws 2| and 22 it is carried forward by the cylinder 7, and the gumming bar I5 is caused to apply gum to a portion of the blank body 29 which is to be covered by the projecting blank flap 30. In the continued forward movement of the cylinder 1 the flap 3!! is carried against a stationary folding plate 3| to fold said flap against the body. The flap then passes beneath said plate 3| and is pressed lightly against the gummed face of the blank body. After this has been accomplished, it is desirable to iron down the folded over flap and to convey the blanks bodily away from the cylinder 1 in order that they may be delivered in an orderly relation to one'another. In accordance with an important feature of this invention, provision is made of a conveyor mechanism 32 which serves both to cooperate with the cylinder 1 in ironing down the folded fiapand to conduct the blanks away from the cylinder 1 and deliver them in a predetermined relation to one another. The con-- veyor mechanism 32 comprises a. pair of chains 33 which run upon sprockets 3| and 35 and which The gripper jaws 31 associated with each bar 36 are secured to a common rock shaft. 31 and are controlled by. cams. 36 and '39, engaged by arms 31 secured to-the rock shaft the cams- 38 being secured to end plates 3880f an auxiliary frame,

and being effective to cause the gripper jaws to approach the cylinder 1 in an open condition and a return spring 31 being eifectivetc swing back the pper jaws onto the leading end of the bag blank after such leading end has been fed between the gripper jaws 31 and the bar 36. The cam 38 is so shaped that the jaws 31 are not permitted tojsnap sharply against the bag material. This is a desirable construction since it prevents injury to materials such as Cellophane that might be damaged by a blow. The cross bars 36 occur along the conveyor at intervals equal in extent to the circumference of the cylinder 1, and the conveyor is driven at a linear speed equal to the peripheral speed of the cylinder 1. v,

The cam 21 acts to operate the gripper jaw 22 to an open position as the leading end of the bag blank nears the point at which-it is transferred to the bar 36 and the gripper jaws 31. Stripper fingers 40 run in grooves 4| of the cylinder 1 and serve to intercept the leading end of the bag blank and to deflect it away from the periphery of the cylinder 1. The deflecting fingers 40 are so mounted upon a shaft 42 supported-by arms 42 carried by a rockable shaft 43. The'arms 42 are normally held in position shown in Figure 1 by means of .a spring and stop (not shown), but may be swung downward to afford access to the other parts when desired. r

The shaft 44, upon whichthe sprockets 34 are mounted, also has fast upon its. series of notched disks 45 which coact with the cylinder 1 in guiding and feeding the blank. Thejnotches 45'--of the disks 45 are so located and timed that they provide grooves'for the bars 36 when the bars travel around the axis of the sprockets 34.

As viewed in Figure I the cylinder 1 rotates in aclockwise directionandthe sprockets 34 in a counterclockwise direction- The blanks are accordingly carried away from the cylinder 1 in the.

, lower stretch of theconveyor 32. 1, A series of rods 46 forms-a table for supporting the depending trailing ends :of'the blanks. Theblanks are carried forward over guides 41 and above a transfrom the cross bar,- the crossbar shaft 62 has fastupon it a'worm wheel 53 which is driven by a worm 64. A link 55 is eccentrically to rock a crank ilffast upon a shaft 56. The

end of-eachofthe cranks hcspivotally connected with .it apusher 64- which; extends of thesconveyor u'ancir sts by l'mvityupon the conveyor. hs dc "t i e pp d. f pon ssidtrcnsverse, conveyor.

- mqunted upon the worm-shaft 56 at *oneend-r thereof.-and acts o o c ate a bellcrank lever- 51. bend-an: leverin turn acts intermittently 1 1! 1i-8 w1 r p 'i 'iu apnsifio w h shaft ilhasfastupon'itapairofcranks'fl. The. of

posited upon the conveyor 46,'itiisimov'ed forward a step by the pusher 6| and is thereafter carried by the conveyor at a uniform slow speed to a point at which the bags are removed from the conveyor by anoperator; If

The 'sha t 44 is supported in the main frame 62 of the achine, and hence controls the position of the left hand end of the conveyor mechanism-32. The shaft 63 at the, opposite end of the conveyor mechanism 32 is'stationary and forms part of the auxiliary frameincluding the side plates 38 which are secured to; each other by said shaft 63 and a bar 64, said frame being vertically adjustable. A link 65 is pivotally connected to the auxiliary frame 64 and extends downward through a stationary ear 66 which is provided on the main frame. Adjustable nuts 61 and 68 are provided above'and below the eat 66 for setting the conveyor mechanism 32 at any desired elevation.

I have described what I believe to be the best embodiments of my invention. I do, not wish. however, to be confined to the embodiments shown, but what I desire to cover by Letters Patent is set forth in the appended claims.

I claim:

1. In a bag machine, in combination, a feeding cylinder, a gripper carried thereby, a conveyor running in juxtaposition with the periphery of the feeding cylinder, said conveyor including a crossbar cooperative with the face ofthe cylinder to grip and positively advance a blank, a gripper carried by theconveyor, and means for transferring the leading end of a bag blanks from the cylinder gripper to the conveyor gripper while the blank is gripped between the conveyor cross .bar and the cylinder surface.

2. In a bag machine, in combination, a feeding cylinder, a gripper carried thereby, a conveyor running in juxtaposition with the periphery of the feeding cylinder, said conveyor including a cross bar cooperative with the face of the cylinder to grip and positively advance a blank, a gripper carried by the conveyor, means for opening the cylinder gripper at a predetermined point to release the bag, means for intercepting the I released leading end of the bag and deflecting it away from the cylinder,.and means for causing the conveyor gripper to extend across the path of the deflected bag and then to swing back onto the same while the blank is gripped between the conveyor crossbar and the cylinder surface.

3. In a bag machine, in combination, a feeding cylinder, a gripper carried thereby, means for conducting the bag blanks away from the cylinder comprising a conveyor, grippers carried by the conveyor and means for transferring the leading end of a blank from thegripper on the cylinder to a conveyor gripper, the conveyor gripper being operated to carry a bag blank away from the cylinder at the lower side of the conveyor, a, second; conveyor running beneath the flrst,-- and=means for releasingthe conveyor rippers at. a predetermined. pointto cause the 4.; Inahag' combination,

a feedingfcylinderga gripper carried thercby for the leading end off ablank. a conveyor in em n: e-mm ii h gentfto the in fifjitl the cylinderto veyor gripper to drop the blank at a point remote from the cylinder, and wherein a slow moving transverse conveyor is provided to receive the dropped blank.

7. A structure as setforth in claim 4 wherein provision is made of means for opening the conveyor gripper to drop the blank at a point remote from the cylinder, and wherein a slow moving transverse conveyor is provided to receive the dropped blank, and further characterized by means to move each bag forward a step as it is .10

deposited upon said conveyon ABRAHAM NOVICK. 

